N2O Decomposition over Fe Ferrierite Pri

The decomposition of N₂O either alone or with several reducing agents (CH₄, CO, NO, and D₂) was investigated using temperature-programmed desorption (TPD) to follow the surface species formed during the reactions. This study aimed to elucidate the nature and reactivity of surface species emerging from both direct and reductant-assisted N₂O decomposition (primary reactions). The TPD products generated from these primary reactions were meticulously compared with those from secondary reactions involving the same reducing agents interacting with the primary surface species. The results demonstrated significant variations in the TPD products dependent on the reaction conditions. The findings provide critical insights into the N₂O decomposition mechanism over Fe-ferrierite, highlighting differences in reactivity when reducing agents are present simultaneously or sequentially with N₂O. Furthermore, the study discusses how the reactivity of surface species and byproducts, such as carbon dioxide and water, influences the overall N₂O elimination process. These discoveries hold implications for optimizing catalytic processes involving nitrous oxide decomposition in zeolite systems.